From Internetworkexpert.com:

The Security section of Internetwork Expert’s CCIE Routing & Switching Lab Workbook Volume 1 Version 5.0 is completed and available on the members site. As of now the fully completed and posted sections are Bridging & Switching, Frame Relay, IP Routing, RIP, EIGRP, OSPF, QoS, Security, System Management, and IP Services. BGP, Multicast, and IPv6 remain, and will be incrementally posted next.

Read more